NOT LISTED FOR SALE

21 Highland Ave Hackettstown, NJ 07840

Mansfield Area

Estimated Value: $442,000 - $456,000

4 Beds
2 Baths
-- Sq Ft
0.5 Acre Lot

Sale Details

Date Sold: December 12, 2025

Last sale price $440,000

Est. 2% increase in value since last sale

Current estimated payment $3,162 / mo

10 Days on Market

About This Home

As of December 2025

This home is located at 21 Highland Ave, Hackettstown, NJ 07840 since 15 October 2025 and is currently estimated at $450,174. This property was built in 1966. 21 Highland Ave is a home located in Warren County with nearby schools including Mansfield Twp Elementary School, Warren Hills Regional Middle School, and Warren Hills Reg High School.

Last Agent to Sell the Property

Joseph Sullivan

COLDWELL BANKER REALTY Brokerage Phone: 908-879-4900 Listed on: 10/15/2025

COLDWELL BANKER REALTY

Last Buyer's Agent

Susan Komorowski

BHHS FOX & ROACH

BHHS FOX & ROACH

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
Collateral Analytics

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ICE

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First American

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Quantarium

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Average Value
Not Available
List Price
Sold Price
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Home Details

Home Type

  • Single Family

Year Built

  • Built in 1966

Lot Details

  • 0.5

Bedrooms and Bathrooms

  • 4 Bedrooms
  • 2 Bathrooms

Home Details

Home Type

Single Family

Year Built

Built in 1966

Lot Details

0.5 Acres

Listing Details

  • Year Built: 1966
  • County Name: Warren
  • I D: 5390697
  • Attribution Contact: 908-879-4900
  • MLS Status: Sold
  • Special Features: None
  • Property Sub Type: Detached

Interior Features

  • Bedrooms: 4
  • Bathrooms: 1.10

Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Listed on
Oct 15, 2025
Closed on
Dec 9, 2025
Sold by
Olson Margaret B
Bought by
Seller's Agent
Joseph Sullivan
COLDWELL BANKER REALTY
Buyer's Agent
Susan Komorowski
BHHS FOX & ROACH
List Price
$415,000
Sold Price
$440,000
Premium/Discount to List
$25,000
6.02%
Views
79
Current Estimated Value
$450,174

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$10,174
Avg. Annual Appreciation
3.32%
Original Mortgage
$195,000
Outstanding Balance
$193,869
Interest Rate
6.22%
Mortgage Type
New Conventional
Estimated Equity
$256,305
Source: Public Records

Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Agents Specializing in Hackettstown, NJ

  • ILDIKO VICTORIA MEIJER Real Estate Agent - COLDWELL BANKER REALTY

    ILDIKO VICTORIA MEIJER

    COLDWELL BANKER REALTY

    (908) 332-0745

    55 Total Sales

    1 in Mansfield

    $339,900 Price

    ILDIKO VICTORIA MEIJER
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  • Mary Blanchard Real Estate Agent - WEICHERT REALTORS

    Mary Blanchard

    WEICHERT REALTORS

    (908) 836-7568

    38 Total Sales

    3 in Mansfield

    $120K - $435K Price Range

    Mary Blanchard
     Section Image
  • Nicole Levine Real Estate Agent - WEICHERT REALTORS

    Nicole Levine

    WEICHERT REALTORS

    (862) 259-6555

    76 Total Sales

    1 in Mansfield

    $650,000 Price

    Nicole Levine
     Section Image
  • Michael Spinetta Real Estate Agent - Berkshire Hathaway HomeServices Fox & Roach - Toms River

    Michael Spinetta

    Berkshire Hathaway HomeServices Fox & Roach - Toms River

    (973) 756-3528

    58 Total Sales

    2 in Mansfield

    $305K - $325K Price Range

    Michael Spinetta
     Section Image
  • Connor Blake Real Estate Agent - Real Broker NY LLC

    Connor Blake

    Real Broker NY LLC

    (862) 354-8369

    46 Total Sales

    2 in Mansfield

    $355K - $520K Price Range

    Connor Blake
     Section Image
  • Joseph Tersigni Real Estate Agent - WEICHERT REALTORS

    Joseph Tersigni

    WEICHERT REALTORS

    (908) 503-3620

    49 Total Sales

    6 in Mansfield

    $130K - $699K Price Range

    Joseph Tersigni
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Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
$440,000 Trident Land Transfer
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Open $195,000
Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft
12/12/2025 12/12/25 Sold $440,000 +6.0% --
11/04/2025 11/04/25 Pending -- -- --
10/25/2025 10/25/25 For Sale $415,000 -- --
Source: Garden State MLS

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2026 $8,280 $232,400 $98,700 $133,700
2025 $8,220 $232,400 $98,700 $133,700
2024 $8,255 $232,400 $98,700 $133,700
2023 $8,108 $232,400 $98,700 $133,700
2022 $6,477 $232,400 $98,700 $133,700
2021 $7,473 $232,400 $98,700 $133,700
2020 $8,083 $232,400 $98,700 $133,700
2019 $7,820 $232,400 $98,700 $133,700
2018 $7,655 $232,400 $98,700 $133,700
2017 $7,655 $232,400 $98,700 $133,700
2016 $7,481 $232,400 $98,700 $133,700
2015 $7,323 $232,400 $98,700 $133,700
2014 $7,091 $232,400 $98,700 $133,700
Source: Public Records

Agents Affiliated with this Home

  • Joseph Sullivan Real Estate Agent - COLDWELL BANKER REALTY

    Seller's Agent in 2025

    Joseph Sullivan

    COLDWELL BANKER REALTY

    (862) 432-1805

    4 Total Sales

    Joseph Sullivan
    Section Image
  • Susan Komorowski Real Estate Agent - BHHS FOX & ROACH

    Buyer's Agent in 2025

    Susan Komorowski

    BHHS FOX & ROACH

    (908) 310-9966

    52 Total Sales

    Susan Komorowski
    Section Image
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Map

Source: Garden State MLS

MLS Number: 3992598

Garden State MLS

APN: 16-02001-0000-00005

New Jersey Warren County Hackettstown 07840

21 Highland Ave, Hackettstown, NJ

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